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Old 07-05-2012, 02:08 AM   #1111
av_mech
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Quote:
Originally Posted by motomuppet View Post
^ +1. I want this as well.
+2
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Old 07-05-2012, 04:56 AM   #1112
Mr_Chris
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Quote:
Originally Posted by av_mech View Post
+2
+3 except I want to be able to retrofit it to my one.
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Old 07-05-2012, 06:22 AM   #1113
turboICE
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The gearing is too close across all gears it is geared like a sports bike. Spread them all out starting with a shorter first and taller sixth. I wouldn't even mind if it had been a 5 speed instead and save some weight. The engine has a wide enough power band to have wider gearing.
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Old 07-05-2012, 07:04 AM   #1114
DAKEZ
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Originally Posted by cug View Post
I want a shorter first and a 6th that turns about 1k rpm lower on the highway.

Why?
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Old 07-05-2012, 07:17 AM   #1115
helotaxi
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Originally Posted by DAKEZ View Post
Why?
Agreed. You'd end up with a useless 6th gear at that point until you're above 80 or so. A lower 1st is my only complaint. You could certainly get away with a wider ratio box with the triple's power band but going much taller on 6th leaves you in a position where you need HP to overcome drag and simply aren't turning enough RPM to make any. You won't see an improvement in mileage and it isn't like the bike has a nasty vibe at certain RPM that you want to avoid.
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Old 07-05-2012, 07:29 AM   #1116
RichardU
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At 70 mph, the difference between 5th and 6th is 451 RPM (5513 vs 5062). That's not much difference.
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Old 07-05-2012, 07:42 AM   #1117
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Originally Posted by DAKEZ View Post
Why?
Because the 6th is a freaking joke. There isn't enough difference to make shifting up really worthwhile. I do it anyways.

For you who don't understand it: you can ALWAYS shift down to get the acceleration you want for passing, you can NEVER shift up to save gas on long highway rides.
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Old 07-05-2012, 07:42 AM   #1118
markbvt
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Originally Posted by burmbuster View Post
at 2. Can't wait. I have ridden the Super Tenneir and wasn't too impressed. I am somewhat on the fence between the 2012 and waiting for a 2013. I can deal with the stepper maintenance but I will be disappointed if I go for the 2012 and they change the gearing ratios for 2013. Oh well, decisions, decisions.
I'll be shocked if they change anything for 2013 besides a color. The bike's too new.

--mark
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Old 07-05-2012, 05:44 PM   #1119
swimmer
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Originally Posted by cug View Post
Because the 6th is a freaking joke. There isn't enough difference to make shifting up really worthwhile. I do it anyways.

For you who don't understand it: you can ALWAYS shift down to get the acceleration you want for passing, you can NEVER shift up to save gas on long highway rides.

I'm running a 47T in back and it makes 6th gear and the "spacing" between the gears very good. Of course the tall 1st gear is even worse....
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Old 07-05-2012, 06:13 PM   #1120
Hardhead
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Originally Posted by markbvt View Post
I'll be shocked if they change anything for 2013 besides a color. The bike's too new.

--mark
I was told the rear footpegs will be boltons instead of welded for the 2013 model.
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Old 07-05-2012, 07:27 PM   #1121
helotaxi
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Originally Posted by cug View Post
For you who don't understand it: you can ALWAYS shift down to get the acceleration you want for passing, you can NEVER shift up to save gas on long highway rides.
It isn't just about acceleration. You need HP to overcome the drag produced at speed. That is just to MAINTAIN speed, not accelerate. Drag increases with the square of speed. Again, get much taller and 6th becomes worthless except for downhills. The engine simply won't make enough power to overcome drag and maintain speed.
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Old 07-05-2012, 07:51 PM   #1122
phillipsrog
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There's no way Triumph could gear this bike to please everyone because people are using it under so many different circumstances. I would prefer a lower first gear, but I could easily get it by changing the front sprocket. I haven't done it yet because all around, the bike works pretty damn well. I'm not fixing what isn't broken.
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Old 07-05-2012, 07:52 PM   #1123
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Quote:
Originally Posted by helotaxi View Post
It isn't just about acceleration. You need HP to overcome the drag produced at speed. That is just to MAINTAIN speed, not accelerate. Drag increases with the square of speed. Again, get much taller and 6th becomes worthless except for downhills. The engine simply won't make enough power to overcome drag and maintain speed.
Apart from the technical explanation that's just not a problem for this engine. There is absolutely no need at all to turn that fast on a flat road to go 70mph or even faster. Hundreds of other engines with less torque (easy speak: HP = torque x rpm) have proven that.
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Old 07-06-2012, 04:00 AM   #1124
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Quote:
Originally Posted by cug View Post
Apart from the technical explanation that's just not a problem for this engine. There is absolutely no need at all to turn that fast on a flat road to go 70mph or even faster. Hundreds of other engines with less torque (easy speak: HP = torque x rpm) have proven that.
I couldn't agree more. One of the greatest flaws with the 800GS is the too close gear ratios, but the 800XC is worse. Taking my numbers from the excellent gearingcommander.com standard the GS does 9.6 Km/Hr per 1,000rpm in first and the XC does 10 Km/Hr. In sixth the GS does 24.7 Km/Hr per 1,000 rpm and the XC does 22.3. Therefore at 100 Km/Hr the GS is doing 4,047 rpm and the XC is doing 4,493 (which is 11% more). Even though when both engines are turning at around 4,500 rpm the 800GS produces about 10% more power at the same 100Km/Hr the GS produces a couple of horsepower less. I think the GS top gear is too low and it could easily pull higher gearing, so I'd argue that the Triumph could easily pull a much higher 6th gear ... at least the same as the current standard 800GS. This way if you thought sixth was too high you could gear it down and you would probably benefit off road with the lower gearing.

As a supporting argument I have a BMW 650 XChallenge as well and it only has a five speed box. It produces about the same maximum power at 7,000 rpm as the 800GS produces at less than 5,000 rpm. Its first gear is 8.2Km/hr per 1,000 rpm and it fifth is 26.7Km/Hr per 1,000 rpm. Despite this it easily pulls it top gear ratio and cruises beautifully up to about 120 Km/Hr which is 4,500 rpm and feels like enough. Obviously the lower first gear works better off road than the 800's.

Of course the 800XC has a much shorter stroke than the BMW's and can rev harder, but I still can't see why either the 800GS or the 800XC need such close gear ratios. I rest my case.
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Old 07-06-2012, 05:15 AM   #1125
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Originally Posted by DAKEZ View Post
Why?
Better economy, less noise, vibration, heat, wear & tear. I could go on but you get the point.

Jim
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